core/tests/components/mqtt/test_util.py

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"""Test MQTT utils."""
from random import getrandbits
from unittest.mock import patch
import pytest
from homeassistant.components import mqtt
@pytest.fixture(autouse=True)
def mock_temp_dir():
"""Mock the certificate temp directory."""
with patch(
# Patch temp dir name to avoid tests fail running in parallel
"homeassistant.components.mqtt.util.TEMP_DIR_NAME",
"home-assistant-mqtt" + f"-{getrandbits(10):03x}",
) as mocked_temp_dir:
yield mocked_temp_dir
@pytest.mark.parametrize(
"option,content,file_created",
[
(mqtt.CONF_CERTIFICATE, "auto", False),
(mqtt.CONF_CERTIFICATE, "### CA CERTIFICATE ###", True),
(mqtt.CONF_CLIENT_CERT, "### CLIENT CERTIFICATE ###", True),
(mqtt.CONF_CLIENT_KEY, "### PRIVATE KEY ###", True),
],
)
async def test_async_create_certificate_temp_files(
hass, mock_temp_dir, option, content, file_created
):
"""Test creating and reading certificate files."""
config = {option: content}
await mqtt.util.async_create_certificate_temp_files(hass, config)
file_path = mqtt.util.get_file_path(option)
assert bool(file_path) is file_created
assert (
mqtt.util.migrate_certificate_file_to_content(file_path or content) == content
)
async def test_reading_non_exitisting_certificate_file():
"""Test reading a non existing certificate file."""
assert (
mqtt.util.migrate_certificate_file_to_content("/home/file_not_exists") is None
)